This has happened when initializing the motion estimation context if width or height of the video was smaller than the block size used for motion estimation and if the motion interpolation mode indicates not to use motion estimation.
The solution is of course to only initialize the motion estimation context if the interpolation mode uses motion estimation. Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavfilter/vf_minterpolate.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/libavfilter/vf_minterpolate.c b/libavfilter/vf_minterpolate.c index e1fe5e32b5..bf45662913 100644 --- a/libavfilter/vf_minterpolate.c +++ b/libavfilter/vf_minterpolate.c @@ -368,6 +368,15 @@ static int config_input(AVFilterLink *inlink) 2 * mi_ctx->mb_size); return AVERROR(EINVAL); } + ff_me_init_context(me_ctx, mi_ctx->mb_size, mi_ctx->search_param, + width, height, 0, (mi_ctx->b_width - 1) << mi_ctx->log2_mb_size, + 0, (mi_ctx->b_height - 1) << mi_ctx->log2_mb_size); + + if (mi_ctx->me_mode == ME_MODE_BIDIR) + me_ctx->get_cost = &get_sad_ob; + else if (mi_ctx->me_mode == ME_MODE_BILAT) + me_ctx->get_cost = &get_sbad_ob; + mi_ctx->pixel_mvs = av_mallocz_array(width * height, sizeof(PixelMVS)); mi_ctx->pixel_weights = av_mallocz_array(width * height, sizeof(PixelWeights)); mi_ctx->pixel_refs = av_mallocz_array(width * height, sizeof(PixelRefs)); @@ -395,13 +404,6 @@ static int config_input(AVFilterLink *inlink) return AVERROR(EINVAL); } - ff_me_init_context(me_ctx, mi_ctx->mb_size, mi_ctx->search_param, width, height, 0, (mi_ctx->b_width - 1) << mi_ctx->log2_mb_size, 0, (mi_ctx->b_height - 1) << mi_ctx->log2_mb_size); - - if (mi_ctx->me_mode == ME_MODE_BIDIR) - me_ctx->get_cost = &get_sad_ob; - else if (mi_ctx->me_mode == ME_MODE_BILAT) - me_ctx->get_cost = &get_sbad_ob; - return 0; fail: for (i = 0; i < NB_FRAMES; i++) @@ -830,9 +832,10 @@ static int inject_frame(AVFilterLink *inlink, AVFrame *avf_in) return 0; } -static int detect_scene_change(MIContext *mi_ctx) +static int detect_scene_change(AVFilterContext *ctx) { - AVMotionEstContext *me_ctx = &mi_ctx->me_ctx; + MIContext *mi_ctx = ctx->priv; + AVFilterLink *input = ctx->inputs[0]; uint8_t *p1 = mi_ctx->frames[1].avf->data[0]; ptrdiff_t linesize1 = mi_ctx->frames[1].avf->linesize[0]; uint8_t *p2 = mi_ctx->frames[2].avf->data[0]; @@ -841,9 +844,9 @@ static int detect_scene_change(MIContext *mi_ctx) if (mi_ctx->scd_method == SCD_METHOD_FDIFF) { double ret = 0, mafd, diff; uint64_t sad; - mi_ctx->sad(p1, linesize1, p2, linesize2, me_ctx->width, me_ctx->height, &sad); + mi_ctx->sad(p1, linesize1, p2, linesize2, input->w, input->h, &sad); emms_c(); - mafd = (double) sad * 100.0 / (me_ctx->height * me_ctx->width) / (1 << mi_ctx->bitdepth); + mafd = (double) sad * 100.0 / (input->h * input->w) / (1 << mi_ctx->bitdepth); diff = fabs(mafd - mi_ctx->prev_mafd); ret = av_clipf(FFMIN(mafd, diff), 0, 100.0); mi_ctx->prev_mafd = mafd; @@ -1191,7 +1194,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *avf_in) if (!mi_ctx->frames[0].avf) return 0; - mi_ctx->scene_changed = detect_scene_change(mi_ctx); + mi_ctx->scene_changed = detect_scene_change(ctx); for (;;) { AVFrame *avf_out; -- 2.25.1 _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
